Drying apparatus



March 18, 1930- u g 1,751,023

DRYING APPARATUS Filed March 19. 1929 2 Sheets-Sheet 1 gwumato'o dlitozmq March 18, 1930. R,J,AUNE V 1,751,023

DRYING APPARATU S Filed Mafoh 19, 1929 2 Sheets-Sheet 2 RICH/9RD J flame Patented Mar. 18, 1930 UNITED STATES RICHARD J. AUNE, OF FEBGUS FALLS, MINNESOTA DRYING APPARATUS Application filed March 19, 1929.

This invention relates to a drying apparatus and has relation more particularly to a device of this kind especially designed and adapted for use in the drying of inner tubes for vehicle tires, and it is an object of the invention to provide an apparatus of this character wherein the tube, during a drying operation, is automatically held in desired position.

It is also an object of the invention to provide a device of this kind embodying a rotating member with which the tube to be dried is adapted to be applied, with means for driving said rotatable member, together with a braking means for holding said member against rotation when the driving means is inoperative.

In the repair of inner tubes it is a common practice to submerge the same in water to facilitate location of a leak and to afterwards dry the tube by wiping. This does not prove satisfactory as by such means the tube is not entirely dried so that when it is returned within a tire casing there is oftentimes a sufficient amount of water retained which results in injury both to the tube and to the inner fabric of the casing. A further object of the invention is to provide an apparatus which will thoroughly dry the tube and thus eliminate the foregoing disadvantages, the apparatus being of a character to effect the drying within a very short period of time.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my 1mproved drying apparatus whereby certaln important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is a view in perspectlve lllustrating a drying apparatus constructed n ac cordance with an embodimentof my inven- Serial No. 348,242.

tion, the supporting means therefor being omitted;

Figure 2 is a view in side elevation of the apparatus as herein disclosed with the housing removed but diagrammatically indicated by broken lines;

Figure 8 is an enlarged fragmentary view partly in section and partly in elevation illustrating in detail certain features of the invention as herein embodied;

Figure 4: is a detailed fragmentary sectional view taken substantially on the line 44 of Figure 3 but on a reduced scale and with certain of the parts in a second position.

As disclosed in the accompanying drawings, 1 denotes a suitably supported standard provided at its upper or outer free end portion with a fixed shaft 2 held to the standard 1 by the nuts 3 threaded upon anend portion of said shaft 2 and having close contact with the opposite faces of the standard 1, or more particularly the reduced extension 1*. Loosely mounted upon the outer portion of the shaft 2 is a disc-like wheel 4 from which extends a plurality of radially disposed elongated arms 5. These arms 5 may be of any number desired but, as illustrated in the acgompanying drawings, they are five in num- Slidably mounted upon each of the'arms 5 is a sleeve 6, the rearportion of which being outwardly offset, as at 7. To this offset portion 7 is pivotally connected, as at 8, the outer end portion of a rod 9, the opposite end portion of which being pivotally connected, as at 10, to the second disc-like wheel or pulley 11. In the present embodiment of my invention the periphery-of the wheel or pulley 11 has disposed circumferentially therearound a groove 12 in which is engaged a driving belt 14: operatively engaged with the drive shaft 15 of a motor M herein disclosed as electric. Interposed in the operating circuit 16 for the motor M is a switch '17 of a conventional type including an extended rock, shaft 18 operating in unison upon manipulation of the throw lever 19 comprised in the switch structure.

Freely surrounding the shaft 2 rearwardly of the wheel or pulley 11 is a brake disc 20 with which are operatively engaged the side arms 21 of a U-shaped member 22. The base portion of this member 22 is supported for rocking movement by the upper portion of the standard 1. V

The central part of the base portion of the member 22 is provided with a depending rock arm 23 which extends within the path of travel of an upstanding rock arm24. carried by a shaft 25 rotatably supported by the bearings26 secured to'the' rear face of the standard 1 at a desired distance below the member 22. The shaft 25 extendsa desired distance to one side of the standard 1 and is provided at its outer end portion with a, 1 se'con'cl-rockarm '27 with which is pivotally connected the lower end portion of a :rod :28,v

the opposite end portion-of which :being pivclose the circuit for ithe'motor l/I the rod 28,

7 otally connected to-a rock arm -29 carried by the-extended p ortion'tof the rock shaft 18 comprised inv the switch mechanism' l7. When the lever 1 9 isthrown in a direction to through the shaft 25, will throw the rock arm. 24 toward-the-standard '1, thus permit-- ting the disc'20to declutch from the wheel i is thrown in a direction'to open the circuit or pulley ll. HoweVer, when the lever 19 17 thecontact :of the rock arm 24 with the rock arm 23 will result in the disc 20 being moved into clutching engagement with the 7 wheel orpulley 11 and thus effectively brake the same-against rotation. v

' 4 as illustrated in Figure 4 of the drawings,

portion 32.

rotation of the wheel or pulley -11.

thewheels '11 and 4w'ith the applied tubeare Each of the sleeves :6 has extending therefrom in a direction beyond the outer face of the adjacent arm 5 a fan blade'30, the upper or outer portion of which-being provided with a relatively la rge opening 81.

closely ad'j ac'ent to the 'peripheryofthe wheel and underwhich condition the adjacent rods 9 will be in crossed relation. position ofthe-roc ls 9 is facilitated by having each of said rods provided with an offset When it is desired to dry a tube the same is positioned'to surround the blades ,30,'th'e portions 33 of-whic'h outwardly of the-openings-31ibeing formed to provide saddles to engage the inner wall of the tube. This en gagement of the saddles 33 with the tube is effected in an automatic manner as a resultof the independent rotationof the wheel or I pulley 11 with respect to the-wheel 4. The.

initial desired outward movement of the sleeves 6, however, is effected by the initial While in rotation, the blades 30 will create air blasts which will pass upwardly and outwardly by ,centrifuge through the openings 31 and against the applied tube and which action, together withsthe rotation of the tube, will W hen the apparatus-' is inactive, the sleeves 6 will assume a 'positionjinwardly of the arms 5 This relativeresult in a quick and thorough drying of the tube. a

To facilitate this drying action, the shaft 2 rearwardly of the brake disc 20 has mounted thereon a housing H, the outer or peripheral portion of which being defined by a forward- ;ly directed flange 34 which extends beyond the blades .30yand the applied-tube as particularly illustrated in Figure 1. The primary purpose of this housing H is to keep the air in circulationwithin a restricted area so asto dry the tubewithin the shortest possible time. The applied housing 'H also serves as asafety device in compliance with the laws of the several States requiringisafeguards in. connection withzmachin s of his .kind( i As particularly illus ratedin.Fig re Leach of the blades in cross section is substantially-concave convex ==although such form rmay .be changed if desi ed.

without departing from-the principles. md 1 spirit thereof and for this :reason 1 do .not

wish to be understood as limiting myself to :the 113380-186 arrangement and formation of the several parts -.herein showniinacarrying out ,myinventien in.practice except iher r .inafterclai-med.

Iclaimx? i 1. A dryingrapparaztus 1013v the c assi scribed comprising a esuitab y suppo te shaft, two wheels mou ted the eon .s orro .tationione independentlyle the other and independently o=f the'zsllatt driving. 'means noacting with on'e. O'fitllfl, wheels arms extend- ;in'g outwardly i from the :second wheel, fan blades-slida'bly mounted upon-said -.ar. .is., Q91 necting means :secured to reach of :theg-fan blades and the :first. Wheel whereby the blade 1 is forced outwardly .ofethe arm upon rotation of-said-firSt wheeliand to cause both .Of the wheels .to rotate in.:u11ison,-.-and engaging means carried by eachofthe blades; i

2. As-drying apparatus o-f-the..,cla:ss described comprising .a .suitably supported shaft, two :WhGlS mounted thereon Ql rota- :tionone independently of the other and in dependently of the shaft, drivingzmeams coacting with one of :the wheels,'f arms. -,ex;tending outwardly from the --second Wheehfan blades slidably mountedupongsaid arms, connectingvmeans secured to each of the-i blades and the ifirst wheel :wherebythe-blade is forced outwardly ofzthe -a-rm llpon ltotation of :sa-idfirst wheel and to cause bQthiOf wheels to rotate in *unisonyand engaging means-carried .:by .each. er :the iblades, -.ar1, d a:

braking means coacting with one of the wheels.

3. A drying apparatus of the class described comprising a suitably supported shaft, two wheels mounted thereon for rotation one independently of the other and independently of the shaft, driving means coacting with one of the wheels, arms extending outwardly from the second wheel, fan blades slidably mounted upon said arms, an operative connection between each of the fan blades and the first wheel whereby the blade is forced outwardly of the arm upon rotation of said first wheel and to cause'both of the wheels to rotate in unison, an engaging means carried by each of the blades, a braking means coacting with one of the wheels, a controller for the driving means, and means operatively connecting said controller and the braking means for releasing the braking means when the driving means is active and for setting the braking means when the driving means is inactive.

4. An apparatus for drying tubes comprising two rotatable members rotating about a common axis, shiftable members carried by one of said rotatable members for engagement with the inner surfaces of a tube, rods operatively connecting said shiftable members and the second member, driving means engageable with the second member, said rods upon rotation of the second member in one direction forcing the shiftable members outwardly with respect to the first member, each of said shiftable members having a portion constituting a fan blade.

5. An apparatus for drying tubes comprising a rotatable member, means for rotating said member, and means carried by said member engageable with the inner surfaces of the tube to hold the tube for rotation with said member, portions of said tube engaging means constituting fan blades.

6. An apparatus for drying tubes comprising a rotatable member, means for rotating said member, and means carried by said member engageable with the inner surfaces of the tube to hold the tube for rotation with said member, portions of said tube engaging means constituting fan blades, and housing substantially inclosing said rotatable member and tube engaging means.

7. An apparatus for drying tubes comprising a rotatable member, fan blades carried.

by said member, and means for supporting a tube at a point outwardly of the blades.

In testimony whereof I hereunto aflix my signature.

RICHARD J. AUNE. 

